SMG Warning light on 02 M3
soo i've been gone from my car 3 weeks and after admiring my lights for a little too long last night i killed my battery.. (please don't let that story stop yall from helping )
jump started about an hour ago and my smg warning light is on...anyone have any ideas why this would occur? i hear it can be an early indicator of battery/alternator failure?
some help? thanks folks